Not exact matches
This is NOT to say the resurrection did or did not happen, it is to say with Troeltsch, that the resurrection is not a «historical» fact
in the sense that it is not possible for historians to consider it — just
as a
supernova would not be a biological or sociological «fact» because it is outside their scope, don't mean novae don't happen!
The universe itself,
as described by science, may be seen
as our Mother but it can also be a capricious Tyrant who could destroy all of us
in the blink of an eye and with less effort at any moment (
supernova, asteroid, etc).
Ripples
in space time have already been observed when hyper - violent events, such
as stars collapsing into black holes or
supernova explosions, occur.
I'm reminded of some dude named Icarus... and of the term «hubris» and the phrase «pride before the fall»... McGregor was a
supernova flash
in the pan, and
as I've said before, he's probably going to go out just
as quickly.
She estimated Buso's chances of such a discovery, his first
supernova, at one
in 10 million or perhaps even
as low
as one
in 100 million.
SHINE BRIGHT
Supernova 1987A shone
as a brilliant point of light near the Tarantula Nebula (pink cloud)
in the Large Magellanic Cloud,
as pictured from an observatory
in Chile.
The
supernova, known
as SN1987A, was first seen by observers
in the Southern Hemisphere
in 1987 when a giant star suddenly exploded at the edge of a nearby dwarf galaxy called the Large Magellanic Cloud.
Before 1987A, astronomers thought that only puffy red stars known
as red supergiants could end their lives
in a
supernova.
A ring of hot spots (
in images from the Hubble Space Telescope) gradually lit up
as a shock wave from
supernova 1987A plowed through a loop of gas that had been expelled by the star tens of thousands of years before the explosion.
The colors represent the relative amounts of short - lived radioactive isotopes, such
as iron - 60, injected into a newly formed protoplanetary disk (seen face on with the protostar being the light purple blob
in the middle) by a
supernova shock wave.
And while this structure was born
in violence - a
supernova is
as nasty
as it gets
in the Universe, pretty much - and glows from violence, it's amazingly delicate - looking and wondrous.
Riess has since hunted down
supernovae that exploded more than 7 billion years ago, filling
in gaps: The universe first slowed down
as the inward pull of matter dominated over the relatively mild outward push of dark energy.
«By introducing asymmetry into the explosion and adjusting the gas properties of the surrounding environment, we were able to reproduce a number of observed features from the real
supernova such
as the persistent one - sidedness
in the radio images,» said Dr Toby Potter.
This should lead to tremendous advances
in time - domain astronomy: studying fast - changing phenomena
as they occur — black holes being born,
supernovas exploding —
as well
as locating potentially Earth - threatening asteroids and mapping the little - understood population of objects orbiting out beyond Neptune.
This effect becomes even more apparent
as the shock collides into the equatorial ring,
as observed
in Hubble Space Telescope images of the
supernova.
After shining for many millions of years, stars end their lives, mainly,
in two ways: very high mass stars die very violently
as supernovae, while low mass stars end
as planetary nebulae.
The most massive stars
in the original cluster will have already run through their brief but brilliant lives and exploded
as supernovae long ago.
The object is located
in the center of a colorful cloud of material consisting of the remains of an ancient star that exploded
as a massive
supernova.
The star, which was 25 times
as massive
as our sun, should have exploded
in a very bright
supernova.
Penn State University astronomers have discovered that the mysterious «cosmic whistles» known
as fast radio bursts can pack a serious punch,
in some cases releasing a billion times more energy
in gamma - rays than they do
in radio waves and rivaling the stellar cataclysms known
as supernovae in their explosive power.
This calcium and other heavy elements could have been created
in supernova explosions, and then incorporated into new stars, but the clusters
as they are today are too small to keep hold of the material violently thrown out by
supernovae.
As it floats
in an area of the LMC racked by the explosions of numerous
supernovae in recent cosmic history, one theory was that the pattern might be caused by a set of localised ripples created when clumps of debris from an ancient
supernova were hit by a blast wave from a relatively recent one.
In the failed
supernova of a red supergiant, the envelope of the star is ejected and expands, producing a cold, red transient source surrounding the newly formed black hole,
as illustrated by the expanding shell (left to right).
Metals (elements heavier than hydrogen and helium) are created
in the interiors of stars
as they evolve and then released into surrounding gas through
supernova explosions or stellar winds (often referred to
as chemical evolution).
Stars exploding
as supernovae are the main sources of heavy chemical elements
in the Universe.
A type Ia
supernova that exploded when the universe was half its present size is about one ten - billionth
as bright
as Sirius, the brightest star
in the sky.
The vast distances to the galaxies and thick shrouds of dust blocked a view of the inevitable climax:
supernovas exploding
in rapid succession
as each generation of giant stars dies out.
This awkward status
as cosmic
in - betweener means brown dwarfs are often overshadowed by their flashier counterparts, such
as alien worlds or fiery
supernovae.
Gas and dust
in space can have an impact on the brightness of standard candles — objects with known brightness such
as type 1a
supernovas and some variable stars
DAZZLING
in its brightness, a rare type of star's first outburst
in 2009 was soon dismissed
as the tantrum of a
supernova impostor.
When the bubbling of the gas becomes sufficiently powerful, the
supernova explosion sets
in as if the lid of the pot were blown off.
FLASH OF LIGHT Type 1a
supernovas, such
as the one seen
in this Hubble Space Telescope image, can be triggered
in at least two different ways, new research shows.
Young
supernova remnants such
as Cassiopeia A are among the most beautiful objects
in the X-ray sky.
Four images of the same
supernova flashed
in the constellation Leo
as its light bent around a galaxy sitting about 6 billion light - years away between Hubble and the exploding star, researchers report
in the March 6 Science.
Jon Mauerhan at the Steward Observatory
in Tucson, Arizona, cites brightening on 26 September and material shooting out at 13,000 kilometres per second
as sure - fire signs that SN 2009ip truly went
supernova (arxiv.org/abs/1209.6320).
When a massive star dies, it explodes
as a
supernova, which includes a short burst of visible light,
as in this illustration.
Observations of type 1a
supernovas imply a faster expansion rate (known
as the Hubble constant) than studies of the cosmic microwave background — light that originated early
in cosmic history (SN: 8/6/2016, p. 10).
As part of the Space Telescope Science Institute
in Maryland, he leads one of the world's few groups looking for the reverberations of ancient
supernovas — those whose light hit Earth thousands of years ago.
Studies using type 1a
supernovas as «standard candles» to measure how fast the universe expands (the Hubble constant) produce a result
in conflict with other data used to infer the cosmic growth rate.
The process could be used to detect
supernovas as well — if a
supernova explodes nearby, scientists could spot its neutrinos scattering off nuclei
in their detectors.
Rest fell
in love with
supernovas by accident,
as a young researcher at the Cerro Tololo Inter-American Observatory
in Chile.
The highest energy gamma rays originate
in the graveyards of big stars, such
as the spinning pulsar remnants of
supernovae.
Rather, they analyzed microscopic silicon carbide, SiC, dust grains that formed
in supernovae more than 4.6 billion years ago and were trapped
in meteorites
as our Solar System formed from the ashes of the galaxy's previous generations of stars.
But some astronomers wonder if distant
supernovae appear dimmer than expected because
supernovae in the past were not
as bright
as they are now.
In that case, faraway
supernovas (which we see
as they were billions of years ago, when the growth was more rapid) would have accumulated redshift more quickly relative to their distance than nearby ones.
Last April astronomical detectives announced a break: An orbiting X-ray observatory picked up the chemical fingerprints of several elements
in a burst's afterglow, identifying the object
as an unusual type of
supernova — the detonation of a massive, dying star.
A shock wave from that collapse will speed outward, violently expelling the star's outer layers
in a massive explosion known
as a
supernova.
The
supernova was discovered
in July 1992 by Roberto Antezana of the University of Chile
as part of a search being conducted there and at Cerro Tololo Inter-American Observatory
in Chile.
The results, presented April 15 at a conference
in Geneva, may force scientists to rethink theories that focus on
supernovas as the producers of these speedy particles.
It is the energy released
in this collision that causes the rapid brightening we see
as a
supernova.